Convert FWL_ERR into an enum class.

xfa/fxfa/app/xfa_fftextedit.h

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #ifndef XFA_FXFA_APP_XFA_FFTEXTEDIT_H_
 #define XFA_FXFA_APP_XFA_FFTEXTEDIT_H_
 
 #include <vector>
@@ skipping 26 matching lines @@
   FX_BOOL Paste(const CFX_WideString& wsPaste) override;
   FX_BOOL SelectAll() override;
   FX_BOOL Delete() override;
   FX_BOOL DeSelect() override;
   FX_BOOL GetSuggestWords(CFX_PointF pointf,
                           std::vector<CFX_ByteString>& sSuggest) override;
   FX_BOOL ReplaceSpellCheckWord(CFX_PointF pointf,
                                 const CFX_ByteStringC& bsReplace) override;
 
   // IFWL_WidgetDelegate:
-  int32_t OnProcessMessage(CFWL_Message* pMessage) override;
-  FWL_ERR OnProcessEvent(CFWL_Event* pEvent) override;
-  FWL_ERR OnDrawWidget(CFX_Graphics* pGraphics,
-                       const CFX_Matrix* pMatrix = NULL) override;
+  void OnProcessMessage(CFWL_Message* pMessage) override;
+  void OnProcessEvent(CFWL_Event* pEvent) override;
+  void OnDrawWidget(CFX_Graphics* pGraphics,
+                    const CFX_Matrix* pMatrix = NULL) override;
 
   void OnTextChanged(IFWL_Widget* pWidget,
                      const CFX_WideString& wsChanged,
                      const CFX_WideString& wsPrevText);
   void OnTextFull(IFWL_Widget* pWidget);
   FX_BOOL CheckWord(const CFX_ByteStringC& sWord);
   FX_BOOL GetSuggestWords(const CFX_ByteStringC& sWord,
                           std::vector<CFX_ByteString>& sSuggest);
 
  protected:
   uint32_t GetAlignment();
   FX_BOOL CommitData() override;
   FX_BOOL UpdateFWLData() override;
   FX_BOOL IsDataChanged() override;
   void ValidateNumberField(const CFX_WideString& wsText);
 
   IFWL_WidgetDelegate* m_pOldDelegate;
 };
 
 class CXFA_FFNumericEdit : public CXFA_FFTextEdit {
  public:
   CXFA_FFNumericEdit(CXFA_FFPageView* pPageView, CXFA_WidgetAcc* pDataAcc);
   virtual ~CXFA_FFNumericEdit();
   virtual FX_BOOL LoadWidget();
   virtual void UpdateWidgetProperty();
-  virtual FWL_ERR OnProcessEvent(CFWL_Event* pEvent);
+  virtual void OnProcessEvent(CFWL_Event* pEvent);
 
  public:
   FX_BOOL OnValidate(IFWL_Widget* pWidget, CFX_WideString& wsText);
 };
 class CXFA_FFPasswordEdit : public CXFA_FFTextEdit {
  public:
   CXFA_FFPasswordEdit(CXFA_FFPageView* pPageView, CXFA_WidgetAcc* pDataAcc);
   virtual ~CXFA_FFPasswordEdit();
   virtual FX_BOOL LoadWidget();
   virtual void UpdateWidgetProperty();
@@ skipping 38 matching lines @@
   virtual FX_BOOL PtInActiveRect(FX_FLOAT fx, FX_FLOAT fy);
   virtual FX_BOOL CommitData();
   virtual FX_BOOL UpdateFWLData();
   virtual FX_BOOL IsDataChanged();
 
  public:
   void OnSelectChanged(IFWL_Widget* pWidget,
                        int32_t iYear,
                        int32_t iMonth,
                        int32_t iDay);
-  virtual FWL_ERR OnProcessEvent(CFWL_Event* pEvent);
+  virtual void OnProcessEvent(CFWL_Event* pEvent);
 };
 
 #endif  // XFA_FXFA_APP_XFA_FFTEXTEDIT_H_